201222206441 has 2 divisors, whose sum is σ = 201222206442. Its totient is φ = 201222206440.

The previous prime is 201222206401. The next prime is 201222206453. The reversal of 201222206441 is 144602222102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 176879966041 + 24342240400 = 420571^2 + 156020^2 .

It is a cyclic number.

It is not a de Polignac number, because 201222206441 - 2⁶ = 201222206377 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201222206441.

It is not a weakly prime, because it can be changed into another prime (201222206401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100611103220 + 100611103221.

It is an arithmetic number, because the mean of its divisors is an integer number (100611103221).

Almost surely, 2^201222206441 is an apocalyptic number.

It is an amenable number.

201222206441 is a deficient number, since it is larger than the sum of its proper divisors (1).

201222206441 is an equidigital number, since it uses as much as digits as its factorization.

201222206441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 201222206441 its reverse (144602222102), we get a palindrome (345824428543).

The spelling of 201222206441 in words is "two hundred one billion, two hundred twenty-two million, two hundred six thousand, four hundred forty-one".